java.lang.NullPointerException: Attempt to invoke virtual method 'android.content.res.Resources$Theme android.content.Context.getTheme()' on a null object reference
	at android.app.AlertDialog.resolveDialogTheme(AlertDialog.java:241)
	at android.app.AlertDialog.<init>(AlertDialog.java:1313)
	at android.app.AlertDialog.<init>(AlertDialog.java:222)
	at android.app.AlertDialog.<init>(AlertDialog.java:204)
	at android.app.AlertDialog.<init>(AlertDialog.java:149)
	at android.app.ProgressDialog.<init>(ProgressDialog.java:82)
	at d4.c1.J(SourceFile)
	at d4.c1$n.onErrorResponse(SourceFile)
	at com.android.volley.n.deliverError(SourceFile)
	at com.android.volley.f$b.run(SourceFile)
	at android.os.Handler.handleCallback(Handler.java:751)
	at android.os.Handler.dispatchMessage(Handler.java:95)
	at android.os.Looper.loop(Looper.java:186)
	at android.app.ActivityThread.main(ActivityThread.java:6513)
	at java.lang.reflect.Method.invoke(Native Method)
	at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:914)
	at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:804)